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Proceedings Paper

Chromaticity gamut enhancement by heptatone multicolor printing
Author(s): Victor Ostromoukhov
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Paper Abstract

The present paper studies the chromaticity gamut of multi-color printing processes. Heptatone (7-color) printing - the most promising variant of multi-color printing - offers a significantly larger gamut than a conventional CMYK printing process, approaching CRT and film gamuts. The behavior of the process in the device-independent CIE-XYZ and CIE-L*u*v* colorimetric spaces is explored using the compound Neugebauer model developed for this purpose. A simple and straightforward Moire-free separation process is proposed. The strong point of the proposed separation process is the fact that only 3 different screen layers are needed for any odd number of basic colors including black.

Paper Details

Date Published: 4 August 1993
PDF: 13 pages
Proc. SPIE 1909, Device-Independent Color Imaging and Imaging Systems Integration, (4 August 1993); doi: 10.1117/12.149036
Show Author Affiliations
Victor Ostromoukhov, Swiss Federal Institute of Technology (Switzerland)

Published in SPIE Proceedings Vol. 1909:
Device-Independent Color Imaging and Imaging Systems Integration
Ricardo J. Motta; Hapet A. Berberian, Editor(s)

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